permanent bar永外磁棒
permanentadj.永久的;持久的n.<口> 烫发
permanent magnet dynamic loudspeaker永磁动圈式扬声器
Permanent magnetism DC micro-motor永磁直流微电机
permanent magnet-synchronous motor永磁同步电机
Permanent needle of deep venipucture穿刺术
permanent-magnet brushless machine永磁无刷电动机
permanent-magnet-field generator永磁发电机; 永(久)磁(场)振荡器
Permanent magnetic drum dry separator干式永磁筒式磁选机
permanent-magent double rotor motor永磁式双转子电机
Permanent-magnet brushless DC motor永磁无刷直流电机
Permanent address and telephone no.永久通讯地址及电话。